Global Patent Index - EP 2743251 A1

EP 2743251 A1 20140618 - 3-AMINOMETHYL-3, 5, 5-TRIMETHYL CYCLOHEXYLAMINE PREPARATION METHOD

Title (en)

3-AMINOMETHYL-3, 5, 5-TRIMETHYL CYCLOHEXYLAMINE PREPARATION METHOD

Title (de)

HERSTELLUNGSVERFAHREN FÜR 3-AMINOMETHYL-3, 5, 5-TRIMETHYLCYCLOHEXYLAMIN

Title (fr)

PROCÉDÉ DE PRÉPARATION DE LA 3-AMINOMÉTHYL-3, 5, 5- TRIMÉTHYL CYCLOHEXYLIMINE

Publication

EP 2743251 A1 20140618 (EN)

Application

EP 11870592 A 20110906

Priority

  • CN 201110231786 A 20110808
  • CN 2011079372 W 20110906

Abstract (en)

Provided is a 3-aminomethyl-3,5,5-trimethylcyclohexylamine preparation method. A feeding flow of 3-cyano-3,5,5-trimethylcyclohexylimine is reacted with NH 3 and hydrogen in the presence of a hydrogenation catalyst; the method is characterized by: firstly adding a basic compound to the feeding flow of 3-cyano-3,5,5-trimethylcyclohexylimine, and then after a portion of 3-cyano-3,5,5-trimethylcyclohexylimine has reacted, adding an acidic compound to reaction materials for further hydrogenation reaction to prepare the product. The method ensures that the aminonitrile content in the product is low, thus effectively reducing the duration of the reaction and greatly reducing the consumption of the catalyst during the hydrogenation reaction process.

IPC 8 full level

C07C 211/36 (2006.01); C07C 209/48 (2006.01); C07C 209/52 (2006.01); C07C 253/30 (2006.01); C07C 255/46 (2006.01); C07C 255/61 (2006.01)

CPC (source: EP KR US)

C07C 209/48 (2013.01 - EP KR US); C07C 209/52 (2013.01 - EP); C07C 209/62 (2013.01 - US); C07C 211/36 (2013.01 - KR US); C07C 253/30 (2013.01 - EP); C07C 2601/14 (2017.05 - EP)

C-Set (source: EP)

  1. C07C 253/30 + C07C 255/61
  2. C07C 253/30 + C07C 255/46
  3. C07C 209/48 + C07C 211/36
  4. C07C 209/52 + C07C 211/36

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 2743251 A1 20140618; EP 2743251 A4 20150325; EP 2743251 B1 20180627; CN 102924291 A 20130213; CN 102924291 B 20140806; JP 2014524939 A 20140925; JP 5818988 B2 20151118; KR 101577779 B1 20151215; KR 20130137236 A 20131216; RU 2013142603 A 20150410; US 2014142341 A1 20140522; US 8829245 B2 20140909; WO 2013020316 A1 20130214

DOCDB simple family (application)

EP 11870592 A 20110906; CN 2011079372 W 20110906; CN 201110231786 A 20110808; JP 2014524248 A 20110906; KR 20137028608 A 20110906; RU 2013142603 A 20110906; US 201114113907 A 20110906